WorksheetsRegents Review Set 1
Total questions: 12
Worksheet time: 23mins
Name
Class
Date
1.
Which diagram represents a mixture of two different molecular forms of the same element?
a)
1
b)
2
c)
3
d)
4
2.
The mass of a proton is approximately equal to the mass of
a)
an alpha particle
b)
a beta particle
c)
a neutron
d)
a positron
3.
Which list of elements consists of a metal, a metalloid, and a nonmetal?
a)
Li, Na, Rb
b)
Cr, Mo, W
c)
Sn, Si, C
d)
O, S, Te
4.
Which phrase describes the distribution of charge and the polarity of a CH4 molecule?
a)
symmetrical and polar
b)
symmetrical and nonpolar
c)
asymmetrical and polar
d)
asymmetrical and nonpolar
5.
What quantities must be conserved in all chemical reactions?
a)
mass, charge, density
b)
mass, charge, energy
c)
charge, volume, density
d)
charge, volume, energy
6.
Which equation represents natural transmutation?
a)
1
b)
2
c)
3
d)
4
7.
During which time interval is the average kinetic energy of the particles of the substance constant while the potential energy of the particle increases?
a)
AC
b)
BC
c)
CD
d)
DF
8.
At standard pressure, which substance becomes less soluble in water as temperature increases from 10oC to 80oC?
a)
HCl
b)
KCl
c)
NaCl
d)
NH4Cl
9.
Given the potential energy diagram representing a reversible reaction: the activation energy for the reverse reaction is represented by
a)
A + B
b)
B + C
c)
B + D
d)
C + D
10.
Which substance yiels H+(aq) as the only positive ion in an aqueous solution?
a)
CH3CHO
b)
CH3CH2OH
c)
CH3COOH
d)
CH3OCH3
11.
Which formula represents a molecule of 2-chlorobutane?
a)
1
b)
2
c)
3
d)
4
12.
Which reaction occurs at the cathode in an electrochemical cell?
a)
combustion
b)
neutralization
c)
oxidation
d)
reduction
100 %
